CN2261332Y

CN2261332Y - Shockless paper directly feeding offset printer

Info

Publication number: CN2261332Y
Application number: CN 96248032
Authority: CN
Inventors: 张佰力
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-10-10
Filing date: 1996-10-10
Publication date: 1997-09-03
Anticipated expiration: 2006-10-10

Abstract

The utility model relates to a shockless paper directly feeding offset printer. The paper feeding mechanism of the offset printer is formed by that a roller (1) is fixed with a bearing seat (12) which is provided with a driving shaft (16) and a driven shaft (11) inside; the driving shaft (16) is provided with a driving rocker arm (4) and a return spring and is fixed with a cam roller rocker arm (2) on the shaft end; both ends of a driven rocker arm (10) are respectively provided with the driven shaft (11) and a geared shaft (8); the geared shaft (8) is fixed with gears (9) and a linking arm (6); the linking arm (6) is movably connected with the driven rocker (4) arm by a joint pin (5); a side wall plate (17) is provided with an outer cam (7) and an inner convex block (13) which are adjustable in position. The offset printer has the advantages of simple structure, easy fabrication, long service life, shockless paper feed mechanism, high printing speed and good printing quality.

Description

There is not the direct transfer offset press of bump

The utility model belongs to printing machinery, a kind of offset press that does not have the direct transfer mode of bump of saying so in more detail.

The offset press of at present general direct transfer mode, its direct feeding mechanism are by tipping bucket, the axle of gritting one's teeth, grit one's teeth, bearing block, support spring bar, hit parts such as door bolt and constitute.The axle of gritting one's teeth evenly is fixed with and grits one's teeth, and axle head is fixed a tipping bucket, and makes in the bearing block of axle on being anchored on cylinder of gritting one's teeth and rotate, and the support spring bar is given to grit one's teeth by tipping bucket provides biting force.Cylinder when rotation tipping bucket is hit door bolt by two on the offset press framed side wallboard and hits and dial and overturn, and drives simultaneously to grit one's teeth the paper cylinder printing of nipping.This direct feeding mechanism owing to adopt hits door bolt and to hit and dial tipping bucket and make to grit one's teeth and bite paper and finish transfer, thereby bump is bigger, limited rotating speed, destroyed the at the uniform velocity running of cylinder, influence printing quality, production efficiency is low, is that at present directly the ubiquitous difficult problem of transfer offset press (sees Fang Zhenya for details and compiles, ((the lithographic offset printing machinery " book in the 139th page) that printing industry publishing house publishes in April, 1989.

The purpose of this utility model provides a kind of nothing and clashes into direct transfer offset press, and it can overcome the above-mentioned shortcoming of existing offset press, improves printing quality and printing efficiency, and simple in structure, cost is low, transfer is effective, and is easy to manufacture, the life-span is long.

Clash into direct transfer offset press according to the nothing that the utility model provides, its feeding mechanism (Fig. 1) is to go up fixed bearing block (12) at cylinder (1); Driving shaft (16), the driven shaft (11) of flexible rotation are housed in the corresponding axis hole of bearing block (12); Driving shaft (16) axle head is fixed a cam bawl rocking arm (2), and direction is roughly pointed to cylinder (1) center of circle; Cam bawl rocking arm (2) two ends are equipped with the outer roller (3) of flexible rotation, interior roller (14); Be fixed with initiatively rocking arm (4) on the driving shaft (16), direction is pointed to the axle (8) of gritting one's teeth; Driving shaft (16) is with return spring (15), and return spring (15) two ends are individually fixed on bearing block (12) and the initiatively rocking arm (4); Be fixed with driven rocking arm (10) on the driven shaft (11); Driven rocking arm (10) other end axis hole is installed the axle (8) of gritting one's teeth that can rotate flexibly; The axle of gritting one's teeth is fixed with on (8) grits one's teeth (9) and transmission arm (6); Transmission arm (6) connects with attachment pegs (5) is movable with initiatively rocking arm (4); External cam (7), interior projection (13) are installed, and its installation site can be adjusted on printing machine framed side wallboard (17).During work, cylinder rotates with direction shown in Fig. 1 arrow, external cam (7) drives outer roller (3) and interior roller (14) respectively with interior projection (13), initiatively rocking arm (4) is swung around driving shaft (16), spur driven rocking arm (10) through coupled arm (6), thereby grit one's teeth (9) that connect one with coupled arm (6) are produced hold paper, transfer action in the month, finish the direct transfer work of offset press.

The nothing that the utility model provides is clashed into direct transfer offset press and has been solved the direct feeding mechanism of present offset press bump problem at work, make the offset press running steadily, improve printing quality and printing efficiency, reduced wearing and tearing, thereby prolonged the service life of offset press.And simple in structure, cost is low.

Description of drawings: Fig. 1 is the schematic diagram of the direct feeding mechanism of this utility model.

Among the figure: 1. are cylinders; 2. be the cam bawl rocking arm;

3. be outer roller; 4. be initiatively rocking arm; 5. be attachment pegs;

6. be coupled arm; 7. be external cam; 8. be the axle of gritting one's teeth;

9. grit one's teeth; 10. be driven rocking arm; 11. be driven shaft;

12. be bearing block; 13. be interior projection; 14. be interior roller;

15. be return spring; 16. be driving shaft; 17. framed side wallboard.

Claims

1, a kind of nothing is clashed into direct transfer offset press, its feeding mechanism is by bearing block, grit one's teeth, the axle of gritting one's teeth, interior projection, formations such as external cam, its feeding mechanism that is characterised in that of the present utility model is to go up fixed bearing block (12) at cylinder (1), driving shaft (16) is housed on the bearing block (12), driven shaft (11), the axle head of driving shaft (16) is fixed a cam bawl rocking arm (2), initiatively rocking arm (4) and return spring (15) also are installed on the driving shaft (16), be fixed with driven rocking arm (10) on the driven shaft (11), driven rocking arm (10) other end is installed the axle (8) of gritting one's teeth, the axle of gritting one's teeth is fixed with on (8) grits one's teeth (9) and transmission arm (6), and transmission arm (6) connects with attachment pegs (5) activity with initiatively rocking arm (4).

2, offset press according to claim 1 is characterized in that cam bawl rocking arm (2) two ends of feeding mechanism are equipped with outer roller (3) and interior roller (14).

3, offset press according to claim 1 is characterized in that return spring (15) two ends of feeding mechanism are individually fixed on bearing block (12) and the initiatively rocking arm (4).